In the gas and oil industries, valves are crucial. Six of the valves most common in the gas and oil industry are briefly outlined below.1. Gate valve
The gate valve is perhaps the most common valve found across both industries. It utilises a simple gate system to completely open or close the pipeline. This is a popular choice as it is able to control and maintain a steady flow rate and helps keep the channel open and unobstructed. There is no noticeable drop in pressure where this type of valve is used.
2. Check valve
Check valves are a particularly popular choice in refineries because these restrict backflow and thus prevent cross-contamination. They open under pressure, and they do not require an actuator. The main downside is that they require very precise installation.
The present global market for gas valves is estimated at around $4.5bn. It is expected that gas valves sales will pass the $6.5bn mark by 2028
3. Globe valve
Globe valves are a popular choice for simple open and close operations, circumstances where pressure control/flow regulation is necessary, and also for throttling.
4. Ball valve
A ball valve is a rotary valve that allows flow to be shut off quickly in environments where a tight seal is required. This type works best either fully open or fully closed and does not offer flow regulation or throttle control. The main types are the floating and trunnion ball valves. These valves are effective, easy to repair, and fast to shut off.
5. Plug valve
This valve is made up of a ‘plug’ shaped disc with a horizontal channel drilled through it. When the valve is open, fluid will move freely through the hole. When the actuator is turned 90 degrees, it blocks the flow. This valve is often used for controlling the flow of unrefined oil products.
The butterfly valve is a simple, light and compact valve. It can be used in high-pressure environments and shut tightly when closed. These are often found in larger pipelines.